參數(shù)資料
型號(hào)： MCS7840
廠商： Electronic Theatre Controls, Inc.
英文描述： USB-2.0 to Four Serial Ports
中文描述： 的USB 2.0 4個(gè)串行端口
文件頁數(shù)： 8/41頁
文件大?。?/td> 447K
代理商： MCS7840
MCS7840
USB-2.0 to Four Serial Ports
Page 8
Rev.
1.2
UART Functional Description
Overview
The UARTs are high performance serial ports that comply with the 16c550 speci
fi
cation. All UARTs are similar
in operation and function, and are described in this section. The function of a single UART is described below.
Operation Modes
The UARTs are backward compatible with 16c450 and 16c550 devices. The operation of the port depends
upon the mode settings, which are described throughout the rest of this section. The modes, conditions and
corresponding FIFO depth are tabulated below.
UART Mode
450
550
FIFO Size
1
16
FCR[0]
0
1
450 Mode
After the hardware reset, bit-0 of the FIFO Control
Register (FCR) is cleared, and the UART is
compatible with the 16c450 mode of operation.
The transmitter and receiver FIFOs (referred to as
the “Transmitter Holding Register” and “Receiver
Holding Register” respectively) have a depth of
one.
This mode of operation is known as “Byte Mode”.
550 Mode
After the hardware reset, writing a 1 to FCR[0]
will increase the FIFO size to 16, providing
compatibility with 16c550 devices.
In 16c550 mode, the device has the following
features:
RTS/CTS hardware
fl
ow control or
DSR/D
TR
hardware
fl
ow control
Infrared IrDA format transmit & receive
mode
Deeper (16-Byte) FIFOs
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCS7840CV 制造商:未知廠家 制造商全稱:未知廠家 功能描述:USB-2.0 to Four Serial Ports
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MCS815D16NS30DNW 制造商:SPC Multicomp 功能描述:LED LAMP NEUTRAL WHITE BA15D 制造商:SPC Multicomp 功能描述:LED LAMP, NEUTRAL WHITE, BA15D 制造商:SPC Multicomp 功能描述:LED LAMP, NEUTRAL WHITE, BA15D; Lamp Base Type:BA15d; LED Color:Neutral White; Wavelength Typ:560nm; CCT:4750K; Power Rating:700mW; Supply Voltage:30V; Current Rating:14mA; Beam Angle:360; Average Bulb Life:30000h; No. of LEDs:16 ;RoHS Compliant: Yes
MCS815D16NS30DWW 制造商:SPC Multicomp 功能描述:LED LAMP WARM WHITE BA15D 制造商:SPC Multicomp 功能描述:LED LAMP, WARM WHITE, BA15D 制造商:SPC Multicomp 功能描述:LED LAMP, WARM WHITE, BA15D; Lamp Base Type:BA15d; LED Color:Warm White; Wavelength Typ:590nm; CCT:3200K; Power Rating:700mW; Supply Voltage:30V; Current Rating:14mA; Beam Angle:360; Average Bulb Life:30000h; Luminous Flux:60lm ;RoHS Compliant: Yes
MCS815S16NS30DCW 制造商:SPC Multicomp 功能描述:LED LAMP COOL WHITE S8 BA15S 制造商:SPC Multicomp 功能描述:LED LAMP, COOL WHITE, S8, BA15S 制造商:SPC Multicomp 功能描述:LED LAMP, COOL WHITE, S8, BA15S; Lamp Base Type:BA15s; LED Color:Cool White; Wavelength Typ:530nm; CCT:7000K; Power Rating:700mW; Bulb Size:S-8; Supply Voltage:30V; Beam Angle:360; Average Bulb Life:30000h; Luminous Flux:68lm ;RoHS Compliant: Yes
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